Book Iii. Considers Relative Duties. There Are Three Classes of These.

First, Relative Duties that are Determinate, meaning all those that are strictly defined and enforced; those growing out of Promises, Contracts, Oaths, and Subscriptions to Articles of Religion. Secondly, Relative Duties that are Indeterminate, as Charity, in its various aspects of treatment of dependents, assistance to the needy, &c.; the checks on Anger and Revenge; Gratitude, &c. Thirdly, the Relative Duties growing out of the Sexes.